Cheapest priced copy (Tenth Edition): $0.35 at Card Kingdom, near mint, their price list as of .
Duct Crawler 
Creature — Insect · 1/1 · Common · Tenth Edition · #198
{1}{R}: Target creature can't block this creature this turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tenth Edition | 198 | Common | $0.35 | $0.49 |
| Stronghold | 79 | Common | $0.35 | — |